Milk-cooler



(No Model.)

A. MGGALLUM.

Mllk Cooler No. Patented Feb. 8, 188i.

I702 71227. We

Wz'Zisssa w a5 W UNiTEn STATES PATENT ()FFICE.

ARCHIBALD MGGALL'UM, OF BOONE, ILLINOIS.

MILK-COOLER.

SPECIFICATION forming part of Letters Patent No. 237,403, dated February8, 1881.

Application filed July 17, 1880. (No model.)

To all whom it may concern:

Be it known that I, ARGHIBALD MCOAL- LUM, of the town of Boone, in thecounty of Boone, State of Illinois, have invented a new and usefulImprovement in MilkOoolers, of which the following is a specification.

This invention relates to that class of creamers employing cans in whichto set the milk to raise the cream.

The object of'my invention is to provide a creamer in which the canscontaining the milk are provided with ventilated water-sealin g lids topermit them to be submerged in a suitable water-tank.

To this end I have designed and constructed the creamer represented inthe accompanying drawings, in which Figure l is an isometricalrepresentation of a tank containing my improved cans, and in whichportions of the tank are broken away to more clearly represent the cansof this figure. Fig. 2 is a lengthwise vertical central section. Fig. 3is an isometrical representation of my improved can, in which the lid isomitted. Fig. 4 is a plan view of a portion of the ventilatingtubeinserted in the lid of the can, and of the removable cap supported onthe tube, as seen from the under side of this figure. Fig. 5 is avertical section.

In the figures, A represents the side walls, B the end walls, 0 thebottom, and D the hinged lid, of a water-tank, constructed of suitablematerial, rectangular in form, and of prop,- er size to receive aconvenient number of cans, in this instance consisting of the cans E andF. These cans are constructed of tin-plate as asuitable material, andare of cylindrical form, having a height greater than their diameter,and having an open upper end. These cans are fitted with side handles,a, of loop form, which serve as a convenience in handling, and alsoserve to receive hinged clasps to hold the lid in place. These cans arefitted with a plateglass, b, extending down the side of the can,supported in grooves, in which it is suitably cemented, and throughwhich the depthof the cream-collection may be seen. They are alsoprovided with a series of holes or openings, 0, immediately under thering of its open end, employed to permit the gases rising from the milkin cooling to escape and mingle with the water when the lid is fixed tothe can and submerged in the tank. These cans are provided withremovable pan-like lids of such construction that their dependingoutWard-flarin g side walls, (I, will freely receive the open end of thecans in such a manner that the disk portion 0 of the pan-like lids shallrest on the outer rim of their open end and their flaring side wallsdepend over the side walls of the cans. These pan-like lids are providedwith hinged clasphooks h, havin gtheir hinged connection formed with thedepending outer edge of the flaring side walls, audtheir free hookingends adapted to embrace the loop-formed side handles, a, in such amanner as to clamp and hold the lid to the can. These lids are providedwith ventilating-tubes, which,i'n the lid in place on the can E,consists of a tube, 1', placed in a vertical position centrally in thedisk of the lid, having its depending portion of sufficient length toenter the milk in the can to a depth sufficient to prevent the escape ofthe air contained in the can above the milk when the can is submerged,and its upper portion rises above the disk portion of the lid to aheight sufficient to receive a cap above the water-line in which the canis submerged.

At is represented a cap of tubular form, having a closed end, and is ofgreater diame ter than the tube 2', on which it is mounted, and itsinner surface is provided with bracketsupports Z, adapted to receive theopen end of the tube to support it centrally thereon, to permit thegases and heat rising from the milk through the tube to escape downward,as indicated by the arrows, and to prevent insects and dirt descendingthe tube. This can, when filled and the lid in place thereon, is placedin the tank, and is fixed in position by means of a transverse bar, H,provided with a center opening to receive the ventilating-tube, and isplaced in position thereon, having its ends removably fixed in the sidewalls of the tank.

In the lid on the can F is representeda ventilating-tube, m, which,after rising from the milk to the outer surface of the lid, is formed ina horizontal coil, a, resting thereon, having its upper end portion, 0,rising in a vertical position, and provided with a removable cap, 0, inevery particular the same as the cap it on tube t, and operating in thesame manner for the same purpose. This tube, by means of its coiledform, presents a greater surface to the cooling action of the water, andaids in cooling the milk more rapidly. This can F, when filled and thelid put in place thereon, is then placed in the tank, and is held inposition therein to resist the lifting action of the water in which itis submerged by means of hook-links 7', having an eye-joint connectionwith the tank, and their free ends are provided with a suitable hook, 8,adapted to enter openings t formed in the edge of the depending portionof the lid. These hook-links are formed of parts provided with ascrew-joint connection, a, by means of which their length may be variedto adjust them to hold the can in a proper manner. These cans, thusconstructed and filled, having the ventilated lids put in place thereon,are placed in the tank and fixed in position, as hereindescribed. Thetank is then filled with water sufficient to submerge the cans, but notto close the downward opening of the caps on the ventilating-tubes. Thelid of the tank, if desired, may then be closed and the milk leftto'cool, which process will progress rapidly by radiation from thesurface of the can and lid, and also from the center of the can throughthe tube, and the gases rising from the surface of the milk under thelid will escape through the openings in the upper end of the can, to beabsorbed by the water between the can and depending walls of the lid,and the gases escaping from the center of the can through the tube willbe absorbed by the water in the tank. In this position the milk isallowed to stand to permit the cream to rise, and when the cream hasrisen to the surface the cans are removed from the tank or the waterwithdrawn therefrom, when the depth of the cream in the cans can be seenthrough the plate-glass in its side. The lids are then removed, and thecream carefully collected by skimming it from the surface of the milkand depositing it in a suitable receptacle, after which the cans can becleansed and prepared for a second process.

I claim as my invention 1. In a creamer, the combination, with a can ormilk-receptacle, of a water-sealing lid provided with a tube extendingthrough the same, the upper end of the tube being furnished with a capoflarger diameter than the tube and arranged to depend below the top ofthe tube, substantially as set forth.

2. The combination, with the can and selfsealing lid, of two-partholding'links, the lower section being hinged to the tank and the uppersection provided with a hook adapted to en-' gage with the lid, saidparts being adjustably secured to each other, substantially as setforth.

hi ARUHIBALD MoOALLUM.

mark. Witnesses:

DONALD MOINTYRE, JOHN BoBINsoN.

